Linux/AM3354: Bad device mmc 0

Mehmet Kose41

Prodigy 140 points

Part Number: AM3354

Tool/software: Linux

Dear All,

I have a custom AM3354 board, mostly based on SK.

I am using ti-processor-sdk-linux-am335x-evm-05.01.00.11.

Using uart boot mode, I get ' Bad device mmc 0' error.

U-Boot SPL 2018.01-00445-gc852b6f-dirty (Jan 10 2019 - 11:29:53)
Trying to boot from UART
CCCzModem - CRC mode, 4333(SOH)/0(STX)/0(CAN) packets, 9 retries
Loaded 553868 bytes

U-Boot 2018.01-00445-gc852b6f-dirty (Jan 10 2019 - 11:29:53 +0300)

CPU : AM335X-GP rev 2.1
Model: TI AM335x LOCUS
DRAM: 256 MiB
MMC:   OMAP SD/MMC: 0
** Bad device mmc 0 **
Using default environment

<ethaddr> not set. Validating first E-fuse MAC
Net:   Net Initialization Skipped
No ethernet found.
Hit any key to stop autoboot: 0
MMC Device 1 not found
no mmc device at slot 1
MMC Device 1 not found
no mmc device at slot 1
## Error: "bootcmd_nand0" not defined
starting USB...
USB0:   MUSB host is not registered
Port not available.
No ethernet found.
missing environment variable: pxeuuid
Retrieving file: pxelinux.cfg/00000000
No ethernet found.
Retrieving file: pxelinux.cfg/0000000
No ethernet found.
Retrieving file: pxelinux.cfg/000000
No ethernet found.
Retrieving file: pxelinux.cfg/00000
No ethernet found.
Retrieving file: pxelinux.cfg/0000
No ethernet found.
Retrieving file: pxelinux.cfg/000
No ethernet found.
Retrieving file: pxelinux.cfg/00
No ethernet found.
Retrieving file: pxelinux.cfg/0
No ethernet found.
Retrieving file: pxelinux.cfg/default-arm-am33xx
No ethernet found.
Retrieving file: pxelinux.cfg/default-arm
No ethernet found.
Retrieving file: pxelinux.cfg/default
No ethernet found.
Config file not found
starting USB...
USB0:   MUSB host is not registered
Port not available.
No ethernet found.
No ethernet found.

Below is my configuration for eMMC.

Could you tell me what am I missing or doing wrong?

&mmc1 {
   status="disabled";
};

&mmc2 {
   vmmc-supply = <&vmmc_reg>;
   pinctrl-names = "default";
   pinctrl-0 = <&emmc_pins_default>;
   bus-width = <8>;
   status = "okay";
};

&mmc3 {

status="disabled";
};

emmc_pins_default: emmc_pins_default {
       pinctrl-single,pins = <
           0x80 ( PIN_INPUT | MUX_MODE2 ) /* (U9) gpmc_csn1.mmc1_clk */
           0x84 ( PIN_INPUT | MUX_MODE2 ) /* (V9) gpmc_csn2.mmc1_cmd */
           0x0 ( PIN_INPUT | MUX_MODE1 ) /* (U7) gpmc_ad0.mmc1_dat0 */
           0x4 ( PIN_INPUT | MUX_MODE1 ) /* (V7) gpmc_ad1.mmc1_dat1 */
           0x8 ( PIN_INPUT | MUX_MODE1 ) /* (R8) gpmc_ad2.mmc1_dat2 */
           0xc ( PIN_INPUT | MUX_MODE1 ) /* (T8) gpmc_ad3.mmc1_dat3 */
           0x10 ( PIN_INPUT | MUX_MODE1 ) /* (U8) gpmc_ad4.mmc1_dat4 */
           0x14 ( PIN_INPUT | MUX_MODE1 ) /* (V8) gpmc_ad5.mmc1_dat5 */
           0x18 ( PIN_INPUT | MUX_MODE1 ) /* (R9) gpmc_ad6.mmc1_dat6 */
           0x1c ( PIN_INPUT | MUX_MODE1 ) /* (T9) gpmc_ad7.mmc1_dat7 */
       >;
   };

over 6 years ago

0 Kemal R. Shakir over 6 years ago

TI__Guru 55345 points

Hello Mehmet,

Can you also revise the pinmux settings in <Processor SDK>/board-support/u-boot-<version>/board/ti/am335x/mux.c file and attach the output of these commands?

=> env default -a -f
=> saveenv
=> mmc list
=> mmc dev 0
=> mmc info
=> mmc dev 1
=> mmc info

Best regards,
Kemal

0 Mehmet Kose41 over 6 years ago in reply to Kemal R. Shakir

Prodigy 140 points

Hello Kemal,

It looks like it was related with mux.c as you mentioned. I modified mux.c as follows;

static struct module_pin_mux mmc1_pin_mux[] = {

{OFFSET(gpmc_ad7), (MODE(1) | RXACTIVE )}, /* MMC1_DAT7 */

{OFFSET(gpmc_ad6), (MODE(1) | RXACTIVE )}, /* MMC1_DAT6 */

{OFFSET(gpmc_ad5), (MODE(1) | RXACTIVE )}, /* MMC1_DAT5 */

{OFFSET(gpmc_ad4), (MODE(1) | RXACTIVE )}, /* MMC1_DAT4 */

{OFFSET(gpmc_ad3), (MODE(1) | RXACTIVE )}, /* MMC1_DAT3 */

{OFFSET(gpmc_ad2), (MODE(1) | RXACTIVE )}, /* MMC1_DAT2 */

{OFFSET(gpmc_ad1), (MODE(1) | RXACTIVE )}, /* MMC1_DAT1 */

{OFFSET(gpmc_ad0), (MODE(1) | RXACTIVE )}, /* MMC1_DAT0 */

{OFFSET(gpmc_csn1), (MODE(2) | RXACTIVE | PULLUP_EN )}, /* MMC1_CLK */

{OFFSET(gpmc_csn2), (MODE(2) | RXACTIVE )}, /* MMC1_CMD */

{-1},

};

...

else if (board_is_evm_sk()) {

		/* Starter Kit EVM */
		configure_module_pin_mux(i2c0_pin_mux);
		configure_module_pin_mux(gpio0_7_pin_mux);
		configure_module_pin_mux(rmii1_pin_mux);
		configure_module_pin_mux(mmc1_pin_mux);
		
		// configure_module_pin_mux(mmc0_pin_mux_sk_evm);
	}

Now I can see eMMC is detected, however when I try to partition the eMMC with below commands I get below error;

switch to partitions #0, OK
mmc1(part 0) is current device
SD/MMC found on device 1
Failed to mount ext2 filesystem...
** Unrecognized filesystem type **
** Unrecognized filesystem type **
SD/MMC found on device 0
** Bad device mmc 0 **
switch to partitions #0, OK
mmc1(part 0) is current device
Failed to mount ext2 filesystem...
** Unrecognized filesystem type **
switch to partitions #0, OK
mmc1(part 0) is current device
SD/MMC found on device 1
Failed to mount ext2 filesystem...
** Unrecognized filesystem type **
## Error: "bootcmd_nand0" not defined
cpsw Waiting for PHY auto negotiation to complete.......user interrupt!
missing environment variable: pxeuuid
Retrieving file: pxelinux.cfg/01-0c-1c-57-69-cb-eb
cpsw Waiting for PHY auto negotiation to complete.user interrupt!
Retrieving file: pxelinux.cfg/00000000
cpsw Waiting for PHY auto negotiation to complete.user interrupt!
Retrieving file: pxelinux.cfg/0000000
cpsw Waiting for PHY auto negotiation to complete.user interrupt!
Retrieving file: pxelinux.cfg/000000
cpsw Waiting for PHY auto negotiation to complete.user interrupt!
Retrieving file: pxelinux.cfg/00000
cpsw Waiting for PHY auto negotiation to complete.user interrupt!
Retrieving file: pxelinux.cfg/0000
cpsw Waiting for PHY auto negotiation to completeuser interrupt!
Retrieving file: pxelinux.cfg/000
cpsw Waiting for PHY auto negotiation to completeuser interrupt!
Retrieving file: pxelinux.cfg/00
cpsw Waiting for PHY auto negotiation to complete.user interrupt!
Retrieving file: pxelinux.cfg/0
cpsw Waiting for PHY auto negotiation to completeuser interrupt!
Retrieving file: pxelinux.cfg/default-arm-am33xx
cpsw Waiting for PHY auto negotiation to completeuser interrupt!
Retrieving file: pxelinux.cfg/default-arm
cpsw Waiting for PHY auto negotiation to complete.user interrupt!
Retrieving file: pxelinux.cfg/default
cpsw Waiting for PHY auto negotiation to completeuser interrupt!
Config file not found
=> <INTERRUPT>
=> mmc list
OMAP SD/MMC: 0
OMAP SD/MMC: 1 (eMMC)
=> mmc dev 0
=> mmc rescan
=> mmc dev 1
switch to partitions #0, OK
mmc1(part 0) is current device
=> setenv uuid_gpt_disk 3a757a80-cedb-4e7d-9537-07de10fda65d
=> setenv uuid_gpt_rootfs bf2599f4-de0f-4e00-ae58-f0eb2b3d3c45
=> gpt write mmc 1 ${partitions}
Writing GPT: omap_hsmmc_send_cmd: timedout waiting on cmd inhibit to clear
omap_hsmmc_send_cmd: timedout waiting on cmd inhibit to clear
omap_hsmmc_send_cmd: timedout waiting on cmd inhibit to clear
omap_hsmmc_send_cmd: timedout waiting on cmd inhibit to clear
omap_hsmmc_send_cmd: timedout waiting on cmd inhibit to clear
omap_hsmmc_send_cmd: timedout waiting on cmd inhibit to clear
** Can't write to device 1 **
** Can't write to device 1 **
error!
=> mmc list
OMAP SD/MMC: 0
OMAP SD/MMC: 1 (eMMC)
=>

Do you have any idea about the cause?

Best Regards

Mehmet

0 Kemal R. Shakir over 6 years ago in reply to Mehmet Kose41

TI__Guru 55345 points

You can refer to this thread. They had the same "omap_hsmmc_send_cmd: timedout waiting on cmd inhibit to clear" error and it was caused by wrong Pinmux settings.

0 Mehmet Kose41 over 6 years ago in reply to Kemal R. Shakir

Prodigy 140 points

Hi Kemal,

Changing pinmux settings like below has resolved the issue;

static struct module_pin_mux mmc1_pin_mux[] = {
{OFFSET(gpmc_ad7), (MODE(1) | RXACTIVE | PULLUP_EN)}, /* MMC1_DAT7 */
{OFFSET(gpmc_ad6), (MODE(1) | RXACTIVE | PULLUP_EN)}, /* MMC1_DAT6 */
{OFFSET(gpmc_ad5), (MODE(1) | RXACTIVE | PULLUP_EN)}, /* MMC1_DAT5 */
{OFFSET(gpmc_ad4), (MODE(1) | RXACTIVE | PULLUP_EN)}, /* MMC1_DAT4 */
{OFFSET(gpmc_ad3), (MODE(1) | RXACTIVE | PULLUP_EN)}, /* MMC1_DAT3 */
{OFFSET(gpmc_ad2), (MODE(1) | RXACTIVE | PULLUP_EN)}, /* MMC1_DAT2 */
{OFFSET(gpmc_ad1), (MODE(1) | RXACTIVE | PULLUP_EN)}, /* MMC1_DAT1 */
{OFFSET(gpmc_ad0), (MODE(1) | RXACTIVE | PULLUP_EN)}, /* MMC1_DAT0 */
{OFFSET(gpmc_csn1), (MODE(2) | RXACTIVE | PULLUP_EN )}, /* MMC1_CLK */
{OFFSET(gpmc_csn2), (MODE(2) | RXACTIVE | PULLUP_EN)}, /* MMC1_CMD */
{-1},
};

Thanks

0 Kemal R. Shakir over 6 years ago in reply to Mehmet Kose41

TI__Guru 55345 points

I am glad to hear that the issue is resolved.

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Linux/AM3354: Bad device mmc 0